Wall block



FIG. 1 is a front upper perspective view of a wall block showing the newdesign;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a first side elevational view thereof;

FIG. 5 is a second side elevational view thereof, the second sideelevational view being opposite the first side elevational view;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown represent unclaimed subject matter only and formno part of the claim.

The dot-dash broken lines depicts the limits of the claim and form nopart of the claim.

CLAIM The ornamental design for a wall block, as shown and described.